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Receiver operating characteristic (ROC) curves for waist circumference (WC) for reflecting insulin resistance in men (A) and women (B). The cutoff value of WC producing maximum sensitivity plus specificity was 84.4 cm for men and 80.8 cm for women. Sensitivity and specificity were 70.0% and 54.2% in men and 71.1% and 59.3% in women.
